What process involves the separation of the voice wave from the carrier wave in transmission?

Demodulation is the process of extracting the original information-bearing signal from a modulated carrier wave. In the context of telecommunications, this is particularly important for recovering voice signals that have been modulated onto a carrier wave for transmission over various media. When a voice signal is sent over a network, it first gets modulated to fit the requirements of the transmission medium, which involves altering the carrier wave to encode the voice signal. Demodulation occurs at the receiving end, where the device must reverse this process, effectively separating the voice wave from the carrier wave. This allows the original voice information to be reconstructed and made understandable to the recipient.

Understanding demodulation is crucial in telecommunications as it ensures that the signal reaches the receiver in a form that can be interpreted, maintaining clarity and quality of the audio, which may otherwise be lost. Other processes such as modulation, multiplexing, and encoding do not involve the separation of signals; rather, they focus on preparing signals for transmission or dealing with multiple signals simultaneously.